Carpet cleaning machine



Jan. 12, 1937. CHASE, 4TH, ET AL 2,067,752

CARPET CLEANING MACHINE Filed Aug. 18, 1934 7 Sheets-Sheet l Jan. 12, 1937. cHAsE. 4TH, El AL 2,067,752

CARPET CLEANING MACHINE Filed Aug. 18, 1934 Sheets-Sheet 2 Jan. 12, 1937. s. CHASE, 4TH, ET AL 2,067,752

CARPET CLEANING MACHINE Filed Aug. 18, 1934 7 Sheets- Sheet 3 f/zuc 11): 5/6/J/[6/1 [/1056 IV,"

George I KM/M,

J 12, 1937, s. CHASE. 4TH, ET AL. 2,067,752

CARPET CLEANING MACHINE Filed Aug. 18, 1934 7 Sheets-Sheet 5 Q95 Jan, 12, 1937, s. CHASE, 4TH, ET AL CARPET CLEAN ING MACHINE Filed Aug.- 18, 1934 7 Sheets-Sheet 6 Jain. 12, 1937. s. CHASE, 4TH, ET AL 2,067,752

CARPET CLEANING MACHINE Filed Aug. 18, 1934 7 Sheets-Sheet 7 atenie Jan. 12, 193? PATENT oFFIcE CARPET CLEANING MACHINE poration of Delaware Application August-18, 1934, Serial No. 140,414 19 Claims. (01. 15-40) This invention relates to apparatus for the cleaning or washing of fabrics, such as carpets, rugs, and the like. n

A general object of the invention is the provision of anapparatus which will effectively and rapidly clean and wash a rug or the like incident to the passage of the same through the machine with a continuous progressive movement, the entire area. of both sides of the rug being subjected to the cleaning operation uniformly, so that there will be no streaks or portions requiring additional washing.

Another object is the provision of such an apparatus which will deliver the washed rug in a 5' condition such that it may be quickly and thoroughly'dried at a moderate temperature, as in a drying apparatus through which the rug is moved progressively after its discharge from the washing machine.-

Another object is the provision of such an apparatus through which a rug or series of rugs or the like may be passed at a suitable speed and subjected to an effective washing or cleaning. without stretching, tearing or otherwise injuring the fabric. I

Yet another object is the provision of such an apparatus which may be operated continuously to accomplish the washing and cleaning of a series of rugs of different sizes.

Yet another object is'the provision of such an apparatus which will effectively clean floor coverings, such as rugs and carpets, without requiring a preliminary beating or dusting of them.

Yet another object is the provision of such an apparatus of very compact structure which will have a high output capacity and will not require an excessive amount of space for its installation and operation. 1

Other objects reside in the provision of improved mechanisms and combinations of mechanisms as hereinafter more particularly described,

and still other objects will be pointed out or indicated hereinafter or will be apparent to one skilled in the art upon an understanding of the invention or its employment in use.

In the drawings forming a part of this specification I show one structural form in which the invention may be embodied, but it is to be understood that this is presented merely by way of illustration, and that the said illustrative embodi-- ment, and the following description thereof, are not to be construed in any fashion calculated to limit the appended claims short of the true and most comprehensive scope of the invention in the art.

In said drawings, 1

Fig. 1 is a front elevation of the left hand por-. tion of a machine embodying the invention;

Fig. 2 is a front elevation of the right hand portion of the machine; 5

Fig. 3 is an elevational view, partly in section, of the left hand end of the machine;

Fig. 4 is an elevational view, partly in section, of the right hand end of the machine;

Fig. 5 is a sectional elevation on approximately 10 line 5-5 of Fig. 1, the front end of the machine being at the left;

Fig. 6 is a sectional detail on approximately line 66 of Fig. 4;

Fig. 7 is an elevational section on approximate- 15 ly line 1-1 of Fig. 3; and

Fig. 8 is a sectional elevation of a machine embodying features of the invention but of asomewhat different form.

The. nature of the invention will probably be 29 most quickly and accurately ascertained from a detailed description of the illustrative embodiment shown in the drawings.

The various parts of the machine are carried for'the most part on the left end frame Ill (Fig. 1) 25 and the right end frame H (Fig. 2) which are supported on a suitable foundation in upright position and in parallel relationship, being spaced a suitable distance from each other to permit the passage between them, of a rug of substantial 30 size (e. g., 14 feet) in outspread condition. These end frame members are connected by various transverse members l2, so as to constitute a supporting frame for the various operating parts. In suitable bearings on the end framemembers 35 are journaled the carrier roll shaft M which carries the rubber coated carrier roll l5, back brush shaft I6 which carries the back' brush ll, lower feed roll shaft I8 which carries the lower feed roll l9, and finishing brush shaft 20 which 0 carries the finishing brush 2 I Wringer roll shaft 22 is journaled in slide bearings 2A which are guided on the end frame members and supported on the pistons of hydraulic elevators 25. Wringer roll shaft 22 carries the Wringer roll 26 which 45 cooperates with the carrier roll l5 and may be adjusted toward or from the same by the hydraulic elevators. The shaft 21 of the first washing brush 28 is journaled in slide bearings supported on the end frame members and movable 50 toward and from the carrier roll I5 under the pressure of adjustable springs 29. The shaft 30 of the second washing brush 3! is likewise journaled in slide bearings on the end frame members, said bearings being pressed toward the carrier 55 iii by means as follows.

' ential gear.

roll by adjustable springs 32. The shaft 3d] of the upper feed roll 35 is iournaied in"vertically slidable bearings on the end frames, which bearings are pressed downwardly by adjustable springs 36 to maintain the feed rolls i9 and 3% in contact. The domng brush 31 is carried on shaft as which is journaled inslide bearings 39 which are adjustable toward and from the carrier roll it by screws it.

Washing brushes 2t and 38 are reciprocable longitudinally through the medium of the mechanism illustrated in Fig. 'i. In the slide bearings ti 'are reciprocable bushings st in which are se= cured the outer races of ball bearings 41 3, the inner races of said bearings being secured respectively to the shafts 21 and at, the construetion thus holding the shafts against longitudinal movement relative to their respective bushings 62, yet permitting their rotation therein. Thrust yokes as are each connected at one end to the respective bushings if by a pin ilt, and at the other end to a crank rod 61. The crank rods i'i are journaled on the cranks of crank shaft as, which cranks are at, approximately 180 angular displacement. Upon rotation of crank shaft 58, therefore, bushings (l2 and washing brush shafts 21 and 3c are reciprocated longitudinally, moving simultaneously but in opposite directions. Guide links 56 resist eccentric thrust of yolkes as on bushings t2.

The carrier roll it and wringer roll 28 are rotated by means as follows. The change speed gear mechanism 5i (Fig. 2) drives a sprocket 52 from which the chain 5 5 drives a stub shaft 55 which drives shaft i8 3 through spur gears 58 and I35. A chain bdfrom a sprocket on shaft its drives the difierential drive shaft 51., Differential drive shaft 51 carries the spider 58 carrying the planetary beveled pinions 5d of a milder- The planetary pinions engage at one side the pinion 60 of difierential shaft ti which extends across the front of the machine and carries spur pinion 52 (Fig. 3) which meshes with the spur gear 6t carried on the left hand end of carrier roll shaft it. Differential gear pinion 65 (Fig. 2) is carried on a sleeve which rotates on differential drive shaft 51 and which sleeve carries a sprocket 66 that drives wringer roll shaft 22 through the medium. of a chain and sprocket connection 61. Thus, while the speed of differential drive shaft 51 is constant, carrier roll i5 and wringer roll 26 may take different rotational speeds. The reasons for providing this differential driving linkage between the carrier roll and the wringer roll are explained hereinafter.

The washing brush shafts 21 and 30 are rotated Sprocket shafts 68 and 69 are journaled on an auxiliary end frame 10 and are driven from shaft 51 by sprocket and chain connections 1| and 12. Sprocket shaft 88 is connected by a coupling 14 to a sleeve 15. all stub shaft 16 is slidable longitudinally in sleeve 15 but is splined thereto so as to rotate therewith. Stub shaft 16 is connected by a coupling 11 with the right hand end of first washing brush shaft 21. Consequently, when sprocket shaft 68 is rotated, shaft 21 will be rotated with it, but may at the same time take its longitudinal reciprocating movement as above described. The couplings 14 and 11 providea universal joint which accommo dates movementeof shaft 2.1 toward and from the carrier roll. Driving connection between sprocket shaft 69 and second washing brush shaft 30 is similarly made by coupling 18, sleeve 19, spline shaft at, and coupling 88.

Crank shaft 88 (Fig. 1)' is rotated through the medium of a beveled gear connection 82 with shaft M, which latter shaft is driven by a chain and sprocket connection $5 with the change speed drive mechanism 5! (Fig. 2).

Lower feed roll shaft is is driven through the medium of a chain 86 (Fig. 3) which is actuated by a sprocket 81 on carrier rolldifierential shaft 69, said chain also actuating a sprocket shaft 88 that is journaled on the left hand end frame. The upper feed roll shaft 3d idles. Back brush shaft is is actuated from shaft 86 (Figs. 2 and 4) through the medium of a chain as, sprocket shaft at which is journaled on the right hand end frame, and chain 9!. Domng brush shaft 38 is driven through the medium of a chain and sprocket connection 92 with wringer roll shaft 22 (Fig. 3) ,and a similar chain and sprocket connection ft with shaft 22 (Fig. 4) at its other end.

Finishing brush shaft 20 is driven through the medium of a chain and sprocket connection 95 (Fig. 2) with difierential drive shaft 51.

The directions of rotation of all of said shafts are indicated by the arrows in Fig. 5.

As illustrated in Fig. 6, the first washing brush.

first washing brush shaft 21 is a pipe 96, said 35 pipe being slidable longitudinally in bearings 91, which bearings are in turn slidable toward and from carrier roll i5. Pipe 96 carries a series of Jet tubes 98 which extend into the circumferential spaces between the groups of bristles of brush 28. The jet tubes have jet openings at their ends directed to discharge against the periphery of carrier roll is. Pipe 96 is reciprocated longitudi-.

nally in consonance with the longitudinal reciprocation of washing brush shaft 21. For that purpose. pipe 96 is connected at its left hand end to the sliding bushing 42 of the first washing brush shaft by means of a link 99 (Figs. 1 and 2). and, at its right hand end to a sliding bushing Hill by a link If. Since both bushings l2 and I00 reciprocate longitudinally with shaft 21, corresponding reciprocation will be imparted to pipe mits pipe 96 to move laterally in consonance with such movements of brush 28. Pipe 21 is prefer- --ably rotatably adjustable. in its bearings 91 so that the direction of the Jets may be altered as desired.

The bristling of back brush i1 is interrupted at intervals considerably farther apart than 'is the case with brush 28, and in the spaces are arranged thin stripper plates llit (Fig. 5) which have"g'uide noses that extend beyond the lower periphery of the brush, said stripper plates being supported on shaft l8 and engaged with a rod III! to hold them against rotating about said plates I06 are mounted on the shaft 38 in the spaces and anchored to a transverse member Iil'l'. Stripper plates I have noses which extend beyond theperiphery of the brush. The bristling g of finishing brush 2| is similarly interrupted at intervals and stripper rods I08 arranged in the spaces, said rods being supported on a transverse member I09 and having their end portions projecting beyond the lower peripheral portion of' the brush. 1 Extending across the machine at wardly from the trough is an apron III which terminates at the upper periphery of the upper feed roll 35. Guide fingers II2 extend forwardly over the rearward portion of this apron and curve downwardly around the rearward periphery of the upper feed roll and forwardly to a position adjacent the bite of the two feed rollers I9 and 35. 'A stationary shaft H6 is mounted rearwardly and above the upper feed roll and extends transversely of the machine and carries a tubular shaft I I5 which is rotatable thereon, said tubular .shaft H5 being driven by a chain and sprocket connection H6 from sprocket shaft 88 (Fig. 1).. A pair of swinging arms II! are supported at their rear ends on shaft Ild, one adjacent each side of the machine, and at their forward ends are connected by a swinging shaft I I8 which has a tubular shaft 9 rotatably mounted thereon. Belts I20, of carding cloth, are carried on tubular shafts II5 and H9. A rocking shaft MI is journaled on the frame above the forward ends of swinging frame members Ill, and isconnected to the latter by means of crank arms I22 and links I25. The piston rod I25 of an air cylinder I26 is connected to rocking shaft I2I' by crank I27, and a hand operable valve device I28 is arranged to control the admission of pressure fluid to the respective sides of the piston in cylinder I25. The rocking shaft I2I may thus be rocked to elevate the forward ends of swinging members I I! and tubular shaft I I9 carried thereby from the lowered position shown in Fig. 5 to the elevated position shown in dotted lines. In the lowered position, the belts I25 travel rearwardly across the upper surface of the apron I l I, whereas in the elevated position the belts I20 are spaced a considerable distance above the apron. Below the assembly of rollers and brushes is arranged a pan I29, which extends from end frame to" end frame and discharges into waste tanks I30 which are drained through outlets I3I. A wire mesh conveyor belt I32, which spans almost the full distance from end frame to end frame, travels rearwardly below the machine from a point in front of the finishing brush 2|, said conveyor being driven by a shaft I actuated by a gear connection I35 to stub .shaft 55 (Fig. 2). I

Wipers I35 are carried on arms I3! which are supported on shaft 5i and maintained in wiping contact with the periphery of carrier roll I5.

The operation of the various parts having been described above, the operation of the machine for the cleaning of a rug will now be described, and the description may be followed most readily by reference to Fig. 5.

The courseof the rug is designated by the dotted line. The rug is rolled up and placed in the trough I I0, wherein it is submerged in a suitable cleaning solution, which may be a soap or other solution, so as to be quite thorou h y wetted thereit upp front portionis a trough H0 and leading rear- 3 with. The valve I 28 is operated by hand to elevate the feeding belts I20. The leading margin of the I rug is withdrawn from the trough by hand and laid flat upon the apron III with the pile or nap side up, care being taken to see that the leading margin of the rug is square or straight across the apron. Then the valve I28 is operated to effeet the lowering of the feeding belts into contact with the rug on the apron. Since these belts are running continuously, they will immediately engage the rug and feed it rearwardly across the apron in outspread condition. The leading margin of the rug passes beneath the forward ends of the feed fingers I I2 and into engagement with the upper feed roll 35, and it is guided around the rearward periphery of that feedroll by the guide 'fingers'and into the bite between the feed rolls 35 -and I9, which feed rolls are actuated at the same peripheral speed as the belts I20. Due to the peripheral grooving of feed rolls I9 and 35, the

cleaning'solution is not squeezed out' of the rug incident ,to its passage between them. As soon.

as the leading margin of the rug is passed through the bite of the feed rolls, valve I28 is operated to efi ect movement of the feeding belts I20 to the elevated position, the feeding of the rug from the tank being thereafter accomplishedby the feed rolls.

Upon passing between the feed rolls, the rug meets the back brush I1, which is running at a higher peripheral speed than the feed rolls, and causes the leading margin of the rug to follow the periphery of the lower feed roll l9 toward the carrier roll. Back brush I1 is thus effective to scrub the back of the rug. The projecting noses of the stripper plates I05 insure the separation of the rug from the back brush and direct it between the lower feed roll l9 and the carrier roll l5. On coming into contact with the rubber coated carrier roll I5, the rug is guided rearwardly against first washing brush 28 which is running at approximately the same or slightly higher peripheral speed than the carrier roll. The rug is thus fed between the carrier roll vand the brush 28, and incident to its passage therebetween it is subjected to the scrubbing action resulting from the longitudinal reciprocating movement of that brush, the brush operating on the upper or pile surface of the rug. The friction between the rubber coated carrier roll and the back of the rug is greater than that imposed by the brush, and this, together with the retention exercised by the feed roll and/or wringer roll, holds the rug in position on the carrier roll so that it is not moved laterally by the brush. The extent of reciprocating movement of the brush is comparatively short (e. g., 2 inches) but exceeds somewhat the width of the spaces between the groups of brush bristles and the space between the jet tubes, and the speed of the reciprocating movement of the brush is considerably greater than the progressive speed of the rug. Since the brush is urged toward the carrier roll by spring pressure, the bristles penetrate into thepile and accomplish a thorough scrubbing of-the fabric which "is still thoroughly wet with the cleaning solution. In passing from contact with the brush 28, the rug is subjected to the forcible impingement of the high pressure jets of liquid (e. g., water) from the jet tubes 98, the effect of said jets being to further loosen and flush out dirt from the rug. Due to the reciprocating movement of the jet tubes and the progressive movement of the rug, the traces or lines of impact of the jets upon the rug are caused to take a zigzag course, and due to the fact that the extent of recip'rocato'ry movement of the jet tubes eizceeds 'the spacing of adjacent jet tubes, the traces of the jets have an inter-lapping relationship. Thus substantially the entire surface of the rug is subjected to the forcible impact of the jets, the water penetrating deeply into the fabric and exercising both a beating and flushing effect. The rug next meets the second cleaning brush 3|, which subjects it to a further scrubbing by the reciprocatory per plates I06 preventing the leading margin from following the doffer brush. The doffer brush may be rotated at a peripheral speed somewhat less than that 'of the carrier roll, so that, as the rug is advanced by the carrier and wringer rolls, it will operate to lay the nap or pile uniformly in the rearward direction. In passing between the carrier and wringer rolls, the rug is subjected to high compression or squeezing which presses out the free liquid. From-the wringer roll the rug passes, pile side downward, over the finishing brush 2|, which raises the pile and brushes it uniformly in the same direction. Passing downwardly from finishing brush 2|, the rug drops on conveyor belt I32 in outspread condition with its pile surface up, and is carried rearwardly by the conveyor. at the same linear rate that it is delivered from the machine, the speed of the conveyor being accurately synchronized with the speed of the machine so that neither any tensioning of the rug nor any piling up of the rug on the conveyor may occur.

It will be apparent that the machine is adapted I to handle rugs or carpets of any length, and that two or more rugs may be passed through it simultaneously side by side, and that it will take rugs one immediately after another without regard to their lengths. It is to be observed also that the entire areas of both sides of the rug are subjected to scrubbing.

The interdependent differential-action between the carrier roll'and wringerroll provides a safeguard against stretching or creasing of the fabric.

Rugs and carpets vary a great deal in thickness, and relative rotational speeds of the carrier roll and wringer roll which would be suitable when operating on a thin rug might be such as to cause a rubbing action between the rolls when operating on a thick rug. The interdependent difierential drive'arrangement above described provides an automatic adjustment of the relative rotational speeds of the carrier and wringer rolls such that their peripheral speedsare properly related to avoid any rubbing action on the rug. I

In Fig. 8 is illustrated a machine similar in general respects to that above described, but in which the arrangement of operating parts is variedtherefrom in certain respects. In this illustration the carrier roll shaft is designated it and the carrier roll l5, thewringer roll shaft 22', the wringer roll 26', and the finishing brush 2|. A peripherally grooved feed roll I is mounted for cooperation with the carrier roll at its top,

and the apron |4| extends from the tank H8 to a point adjacent the bite of the feed roll and carrier roll. The first washing brush 2&8 and 1 second washing brush 3| are actuated as: above described with reference to brushes 28 and 3| to eifect their reciprocation longitudinally, said vof the rug being upward. By operation of these rolls the rug is fed to the action of brush 28', which scrubs its upper pile surface. The rug is then led around the rearward side of brush 3l', which scrubs its back or under surface. The jet tubes 98 from pipe 96' are directed so that the jets therefrom forcibly impinge the rug as it passes about brush 3|, preferably at an angle nearly tangent. Thus as the rug passes around brush 3| its pile isopen orspread, and the washing out and carrying away of the dirt by the jets from tubes 98' is facilitated. A guide plate I44 directs the rug into the bite between scrub brush 3| and dofiing brush 31', which latter brush carries it toward the bite of carrier roll I 5 and i wringer roll 26'. 'As the rug passes between the last mentioned rolls, it is squeezed to press out liquid, and it .is then passed over the finishing brush 2|. of apparatus described, the finishing brush 2| may be rotated at the same peripheral speed as wringer rollYZG' or at a higher or lowerperipheral'speed to raise or lay the nap or pile of the rug; -From'the finishing brush 2|, the rug feeds onto the traveling conveyor belt I32", whereon it is deposited with its pile side upward. The conveyor belt I32 carries the rug to the dryer.

Excepting for the mechanism for rotating the washing brushes 28' and 3|, the means for actuating the various moving parts of the machine may be substantially thesame as those for the machine previously described above, and longitudinal reciprocation of the pipe 96' may likewise be effected;

What we claim is:

1. In a, rug cleaning machine, in combination, a carrier roll, means for rotating same, feed means operable to feed rugs one after another to the carrier roll, a brush cooperating with the carrier roll to feed the rugs progressively, means for actuating the brush to scrub the rugs while they are passing the carrier roll, and a wringer roll cooperating with the carrier roll to squeeze the rugs after they have passed the brush.

2. In a rug cleaning machine, in combination, a carrier roll, means for rotating same, a feed roll arranged to guide a rug toward the carrier roll, a brush associated with the feed roll and operable to brush one side of a rug thereon toward the carrier r311, a brush cooperating with the carrier roll and arranged to brush the other side of the rug in the direction ,of its progressive movement, and means for actuating the last mentioned brush to scrub the rug on the carrier roll incident to and transversely of its progressive movement.

3. In a rug'cleaning' machine, in combination, a carrier roll, means for rotating same, means for feeding a rug progressively to the carrier In this instance, as in the first form 4.. In a rug cleaning machine, in combination, a carrier roll, means for rotating same, means ior feeding a rug progressively to the carrier roll, a brush cooperating with the, carrier roll to impart progressive movement to 'the rug, means for reciprocating the brush longitudinally of the carrier roll to scrub the rug thereon, and means for projecting jets of liquid at high pressure against the rug adjacent the" brush.

5. In a rug cleaning machine, in combination,

a carrier roll, means for rotating same, means for feeding a rug progressively to the carrier roll, a brush cooperating with the carrier roll to impart progressive movement to the rug, means for reciprocating the brush longitudinally. of the carrier roll to scrub the rug thereon, jet tubes arranged at short intervals along the carrier roll in position to project jets of liquid against the rug on said roll adjacent the brush, means for supplying liquid under high pressure to said jet tubes and means for reciprocating the jet tubes to shift the traces of their jets longitudinally of the carrier roll;

6. In a rug cleaning machine, in combination, a carrier roll, means for rotating same, means for feeding a rug progressively to the carrier roll, a brush associated with the carrier roll to contact the rug incident to its progressive movement, means for reciprocating the brush longitudinally of the carrier roll to scrub the rug thereo let tubes arranged at short intervals along the carrier roll in position to project jets of liquid against the rug on said roll adjacent the brush, means for supplying liquid under high pressure to said jet tubes, and means for reciprocating said jet tubes longitudinally of the carrier roll in consonance with the reciprocation of the brush.

'7. Ina rug cleaning machine, in combination,

a carrier roll, means for rotating same, means for feeding a rug progressively to the carrier roll, a pair of rotary brushes associated with the carrier roll and operable to brush the rug in the direction of its progressive movement, and means for reciprocating the brushes longitudinally of the carrier roll to scrub the rug thereon, said means for reciprocating said brushes moving them simultaneously but in opposite directions.

8. In a rug cleaning machine, in combination, a carrier roll adapted to impart progressive feeding movement to a rug, a wringer roll cooperating with the carrier roll to squeeze a rug incident to its passage between them, andactuating means J including a diiferential gear for driving said rolls and efiective automatically to permit variation of their relative angular speeds.

9. In a rug cleaning machine, in combination, a carrier roll rotatable to impart progressive feeding movement toa rug, a rotatable wringer roll cooperating with the carrienroll to squeeze a rug incident to its passage between them, a drive shaft, and a differential gear connecting said drive shaft and rolls whereby the rolls are driven by the shaft and variation of their relative speeds permitted.

10. In a rug cleaning machine, in combination, means for supporting and feeding a rug progressively, a rotary brush cooperating with said means and having its bristling arranged to afford circumferentially extending spaces at intervals lengthwise the brush, jet tubes extending into said spaces and arranged to direct jets against a transversely of the direction of progressive movement of the rug.

11. In a rug cleaning machine, in combination, a feed roll, an apron for guiding a rug to said feed roll, an endless belt arranged to engage a rug on said apron, saidbelt being adjustable to a position in which it is at a substantial distance from the apron to permit the spreading of a marginal portion of a rug on the latter, and means for actuating the belt to move a rug on the apron into engagement with the feed roll.

' 12. In a rug cleaning machine, in combination, a trough adapted to hold a rug in a body of liquid, a carrier roll extending horizontally parallel with said trough, feed means arranged above the carrier roll for feeding a rug to it from said trough, a rotary brush extending parallel withand alongside the carrier roll in position to brush a rug supported thereon, means for projecting forcible jets of liquid against the rug adjacent said brush, a second brush extending alongside the carrier roll in position to brush a rug thereon after it has been struck by the jets, and a wringer roll disposed below the carrier roll in position for cooperation therewith to squeeze a rug incident to its passage between them.

13. In a rug cleaning machine, in combination,

a feed roll, a carrier roll, a wringer roll cooperating'with the carrier roll to squeeze a rug between them, brushes cooperating with said feed roll and carrier'roll to feed the rug progressively to the wringer roll, said brushes arranged to brush both sides of the rug, and means for actuating the carrier roll and brushes. w

14. In.a rug cleaning machine, in .combination, a carrier roll, a feed roll and a wringer roll cooperating with the periphery of said carrier roll and spaced apart from each other circumferentially thereof, a brush associated with the periphery of the carrier roll between the feed roll and wringer roll, means for rotating said rolls, and means for reciprocating the brush longitudinally of the carrier roll to scrub a rug in the course of its movement from the feed roll to the wringer roll.

15. In a rug cleaning machine, in combination, a carrier roll, means for rotating same to impart progressive movement to a rug, a rotary cylindrical brush associated with the carrier roll for operating on the rug in the course of its progressive movement, and means for rotating the brush oppositely to the carrier roll and reciprocating it longitudinally of the carrier roll incident to rotation of the latter.

16. In a rug cleaning machine, in combination, means for applying cleaning material'to a rug, a carrier roll for supporting and progressively moving the rug, a plurality of jet tubes arranged at intervals longitudinally of the carrier roll to direct jets of fluid against the rug incident to its movement by said roll, means for supplying liquid under high pressure to said jet tubes, and means for reciprocating the jet tubes longitudinally of the carrier roll to cause the traces of the jets to change direction and take interlapping courses on the rug incident to its travel past the jets.

17. In a rug cleaning machine, in combination, means for applying cleaning material to a rug. 9. carrier roll for supporting and progressively moving the rug, a plurality of jet tubes arranged at intervals longitudinally of the carrier roll to direct jetsof fluid against the rug incident to its movement by said roll, means for supplying liquid under high pressure to said jet tubes, and means for reciprocating the jet tubes longitudinally of 75 18. In rug cleaning machine, in combination,

means ior applying cleaning material to a rug, a carrier roll for supporting and progressively moving the rug, a plurality of jet tubes arranged at intervals longitudinally of the carrier roll to direct jets of fluid against the rug incident to its movement by said roll, means for supplying liquid under high pressure to said jet tubes, and means for reciprocating the jet tubes longitudinally of the carrier roll througha-distance exceedingthe intervals of the jet tubes at a linear speed exceeding the peripheral speed of the carrier roll.

- 19. In a rug cleaning machine, in combination, a carrier roll for supporting and progressively moving a rug, a pluralityoi jet tubes arranged at intervals longitudinaliy of the carrier roll to direct jets of fluid against the rug incident to its movement past said roll, means for supplying liquid under high pressure to said jet tubes, and means for reciprocating the jet tubes longitudinally oi the carrier roll through a distance exceeding the intervals of the jet tubes.

STEPHEN CHASE. Iv. GEORGE H. PALM. 

